| Value | Category | Cases | |
|---|---|---|---|
| 0 | 943 |
97.4%
|
|
| 1 | 20 |
2.1%
|
|
| 2 | 4 |
0.4%
|
|
| 4 | 1 |
0.1%
|
|
| Sysmiss | 1775 |